Copper Nickel Alloy Mesh 90/10

Product Description:

Copper-nickel alloy mesh made from Cu90Ni10 (UNS C70600) is a widely used material, particularly known for its excellent performance in marine and other corrosive environments. This alloy is the most common grade of copper-nickel used for seawater service due to its cost-effectiveness and exceptional combination of properties.

Copper Nickel Alloy Mesh Available Size Range:

Wire diameter: 0.05mm to 8mm

Opening size: 0.05mm to 30mm

Sheet size: width up to 5000mm, no limit on length.

Chemical Composition:

The designation Cu90Ni10 indicates its primary composition of approximately 90% copper and 10% nickel. Like the 70/30 alloy, it includes small but crucial additions of other elements to enhance its performance:

• Copper: 85.6 – 90%
• Nickel: 9.0 – 11.0%
• Iron: 1.0 – 1.8%
• Manganese: up to 1.0%

The controlled additions of iron and manganese are vital for this alloy’s superior corrosion and erosion resistance in seawater. They help to form a protective film that prevents pitting and crevice corrosion.

Key Properties:

The properties of Cu90Ni10 (UNS C70600) make it a top choice for a wide range of applications:

• Excellent Corrosion Resistance: It provides outstanding resistance to general corrosion, pitting, and crevice corrosion in saltwater, brackish water, and other hostile environments.
• High Resistance to Biofouling: The copper content in the alloy inhibits the growth of marine organisms like barnacles and algae, making it an excellent choice for seawater intake screens and other submerged applications.
• Good Strength and Ductility: While not as strong as the 70/30 alloy, it still offers good tensile and yield strength for many applications. It is also highly ductile, meaning it can be easily formed into a variety of mesh weaves and configurations.
• Good Weldability: Cu90Ni10 is known for its excellent welding and fabrication properties, making it easy to create complex structures and assemblies.
• Thermal and Electrical Conductivity: It maintains a higher thermal and electrical conductivity than the 70/30 alloy, which can be an advantage in certain heat exchanger and electrical applications.

Applications

The unique combination of properties makes Cu90Ni10 wire mesh a popular material for various industries, including:

• Marine and Offshore:
  • Seawater Intake Screens: A primary application where the mesh prevents marine debris and organisms from entering cooling and fire water systems.
  • Condenser and Heat Exchanger Components: Used in marine vessels, power plants, and desalination facilities for its corrosion resistance and heat transfer properties.
  • Piping Systems: Used in saltwater piping on ships and offshore platforms.
• Desalination Plants: Used in various components of desalination systems where resistance to hot, corrosive seawater is critical.
• Chemical and Petrochemical Industries: The mesh is used for filtration and separation in processes involving corrosive fluids.
• Architecture and Art: Due to its reddish-gold color and durability, it can be used for decorative purposes, especially in coastal or maritime-themed installations.

Mesh Weave Types:

Cu90Ni10 wire mesh is available in common weave types to meet different requirements:

• Plain Weave: Suitable for general filtration, sieving, and screening applications.
• Twilled Weave: Provides a denser, stronger mesh for more demanding filtration needs.
• Dutch Weave: Used for fine filtration of small particles.
• Welded Mesh: Used for structural and heavy-duty applications like grates and industrial screens.